Elementary school first grade mathematics within 20 plus or minus oral calculation 100 questions (including answers)

Addition and subtraction within 20 is the main line of mathematics in the first grade of primary school, and it is also the basis for all subsequent calculations. Whether the child can smoothly transition to mental calculation depends on whether the pass is firmly beaten.

Practice Highlights

• 100 questions, the difficulty is uniform, suitable for uniform speed training;
• Addition and subtraction are mixed to prevent children from forming thinking patterns;
• The layout is loose, the words are thin, and the child is not tired in reading the title;
• With answers, it only takes 1 minute for parents to approve.

Training Suggestions

• Do it for the first time: unlimited time, mainly for accuracy;
• Second time: 5 minutes, target 30 questions;
• Each time you make a mistake, the next day you redo the wrong question first;
• Stick to it for two weeks, and your verbal speed will improve immediately.

Why should we pay attention to accountancy?

It is not only the first grade that is affected by verbal ability, but the mathematics at the primary school level and even the rational number operations at the junior high school are based on verbal calculation. It will be much easier afterwards while you take the time to work out your math now.

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